During the 20th Symposium for thermal solar energy, the 1st award of the “Innovations price 2010" has been given to the high-efficiency pump Wilo-Stratos TEC ST 1-7.

This Symposium took place in the Banz Abbey in Bad Staffelstein, Germany, from 5 to 7 May.

Main subjects were the latest technical developments as well as economic and market policy aspects. With its approximately 400 participants from all application and business areas, the symposium is an important forum especially for scientists, engineers and architects to discuss problems and experiences in planning and realisation of buildings with solar thermal systems.

 

Every year the innovation price is awarded for the most innovative developments in solar thermal technology. With this award the jury honours the particular importance of pumps in solar systems. Pumps adjusted in particular to the power requirements of solar systems can considerably reduce power consumption compared to conventional circulation pumps.

 

Wilo-Stratos TEC ST 1-7 contributes to energy savings with its improved maximum efficiency of up to 52 percent and an extended modulation area. This is how power consumption is reduced in the nominal point from 47 W to 25 W; and in the original minimum point (defined by the usual minimum modulation via phase fired controllers of approx. 30 %) from 24 W to initially 7 W. If the entire modulation area is utilised, power consumption is even reduced to just 3 Watt.